She enjoyed a celebratory glass of champagne and posed for press photographers but did not comment on her win.

Solicitor David Sweeney said: "Dolores is absolutely thrilled with her win but realises that it will take some time for the implications of her win to sink in.

"Up to now, Dolores has lived a very happy and contented life among her family, friends and neighbours and it is her sincere desire that she and her family will return to normality as soon as possible."

He added: "She is absolutely determined that her feet and the feet of her family will remain firmly on the ground."

He asked the media to afford her "space and privacy to get her life back to normal".

The Irish lottery did not initially have enough money on hand to honour her prize and had to wait for extra funds to be transferred.

'Big shock'

The cash was ready for her to collect on Wednesday but she failed to appear at the Irish National Lottery offices in Dublin to pick it up.

On Wednesday, Ms McNamara issued a statement saying she appreciated the support she had received from friends and neighbours.

She said the win had come as "a big shock" to her and her family and asked the media to give them "space and privacy to absorb the implications".

To win the Euromillions jackpot, Ms McNamara had to match five main numbers from 1 to 50 and 2 Lucky Star numbers from 1 to 9.